Local and national politics!
International, actually, problems with Germany.
Also- interestingly given they got taken out by Swiss- would anyone know if excessive cockpit gradients exist within the above mentioned airline- (if crew which were possibly similar to the accident crew were retained and still fly for Swiss)..
Kind of the opposite actually, Swissair was taken over by Crossair to form Swiss.(More or Less)
Yes there was lots of problem at the beginning between the different source crews(difference in salary, treatment, aircrafts, etc)
Do not know how's the situation at present.